2(20+1/2x)=1/2(x+89)

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Solution for 2(20+1/2x)=1/2(x+89) equation: 


x in (-oo:+oo)

2*((1/2)*x+20) = (1/2)*(x+89) // - (1/2)*(x+89)

2*((1/2)*x+20)-((1/2)*(x+89)) = 0

2*((1/2)*x+20)+(-1/2)*(x+89) = 0

2*(1/2*x+20)-1/2*(x+89) = 0

2*(1/2*x+20)-1/2*(x+89) = 0

1/2*x-9/2 = 0

1/2*x-9/2 = 0

1/2*x-9/2 = 0 // + 9/2

1/2*x = 9/2 // : 1/2

x = 9/2/1/2

x = 9

x = 9

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